Typewriting machine



l May zo 1924.

' 1,494,372 A. F. POOLE TYPEWRITING MACHINE Filed Nov. 5, H522 'www/W mu Patented May ZO, 1924.

ATENTI ARTHUR F. POOLE, F PELHAM MANOR, NEW YORK, ASSIGNOR 'IO REMINGTON TYPE- WRITER COMlPANY, OF ILION, NEVI' YORK, A CORPORATION OF NEVI YORK.

TYIEWRITING- MACHINE.

Application filed November 3, 1922.

To all whom if; may concern.'

Be it known that I, ARTHUR F. PooLn, citizen of the United States, and resident of Pelham Manor, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

My invention relates to typewriting or l0 like machines, and more particularly to carriage pulling means for such machines.

In the manufacture of typewriting machines with carriages of extraordinary widths, itis highly desirable in so far as possible to employ the standard construction embodied in machines having carriages of customary widths, in order that parts common to two types of machines may be made uniform, and a machine for a comparatively narrow carriage may readily be converted for use with a wide carriage, thus reducing the cost of production of wide carriage machines to the minimum.

In an application of Frederick A. Hart,

filed April 6, 1923, Sr. No. 630,226, a construction is disclosed wherein by the substitution of parts and the addition of certain adjunctive devices or means to a standard typewriting machine, he may readily convert said machine into a combined typewriting and computing machine having an extraordinarily wide carriage. One of the main objects of my invention is to aid in effecting the above result in so far as it relates to the provision of typewriter carriage propelling means, by employing means in the converted wide carriage machine that may be readily added to those usually-employed in the standard machine, without modifying the standard features of construction contained in the niachine, including the usual carriage pulling means and the ribbon feed mechanism controlled thereby.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements ofparts and combinations of devices set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings, wherein like reference characters indicate corresponding parts in the dierent views,

Serial No. 598,717.

Figure 1 is a rear elevation of a typewriting machine embodying my invention.

Figure 2 is a detail fragmentary front elevation of a portion of the same with parts in section.

Figure 3 is a fragmentary detail plan View showing the relation of the drums and the connecting bands.

I have shown in the accompanying drawing drawing features ofthe carriage supporting construction which form part of the said` invention of Frederick A. Hart, although the entire construction is not illustrated..

The main frame of the machine, in the present instance, is the frame of a standard Monarch typewriting machine including a base 1, corner posts 2 and a top plate 3. The usual standard construction also includes a spring drum or carriage propelling means 4, connected by a pull band 5 to the carriage, in order to effect a letter space movement of the latter from right to left under control of the usual carriage escapenient mechanism. rShe escapement mechanism shown includes a key controlledl dog rocker 6, and an escapement wheel in operative connection with a feed pinion that meshes with a feed rack 8 carried by the carriage.

In addition tothe foregoing the standard equipment includes means whereby the turning movement of the spring drum l during the advance of the carriage is transmitted to one or the other of two ribbon spools, to turn the lat-ter and feed the ribbon from the disconnected to the connected or driven spool. These means, as shown in the present instance, comprise a bevel gear 9 operatively connected to the spring drum to turn therewith as the carriage is moving from right to left. This gear 9 is in constant mesh with a bevel gear 10 supported on a ribbon spool driving shaft 11 mounted to turn and move longitudinally in lugs 12 that depend from the top plate 3. The gear 9 loosely surrounds theshaft 11 to permit an independent longitudinal movement of the lat` ter, and is hield against movement longitudinally of the shaft and in mesh with the gear 9 by a forked arm 13. rIhis arm is fixed to the associated lug 12 at 14 and engages at its upper end in a circumferential groove 15 in a hub 16 on the gear 10. In order to permit a longitudinal movement of the shaft independently of the gear 1() and yet connect the latter to turn With ther shaft, a collar 17 is fixed to the shaft by a screw 18.

`This collar has an arm 19 that extends longitudinally of the shaft and is received in a slot in the circular flange 2O on the hub 16. Each end portion of the shaft 11 carries a bevel pinion 21 secured thereto and adapted to be thrown into or out of mesh with a companion bevel gear 22, depending on the position to which the shaft is shifted longitudinally. Each gear 22 is mounted on a fore-and-aft shaft 23 which carries a bevel pinion 24 at its farivard end. Each pinion 2li meshes With a companion bevel pinion 25 on the lower end of a vertically disposed shaft to which a ribbon spool 26 is operatively connected. These are the means employed in the Monarch machine for transmitting a feed movement from the spring drum l to one or the other` of the ribbon spools 26, depending on the longitudinal position of the shaft 11,

As indicated above it is desirable to utilize as far as possible features which are in the standard machine when converting the latter into a long carriage machine. How-` ever, the spring in the ordinary spring drum 4 has to drive the ribbon feed mechanism as Well as to pull the carriage, and its force is insufficient for either purpose when an miusually long or Wide carriage is employed and especially so when said carriage is loaded with a long truck of the lVahl calculating mechanism, as it is in the Hart machine referred to, To change or replace this drinn with an effective one, would require a considerable change of many parts of the machine including the ribbon feed mechanism actuated by the drum, and oven after such reorganization it might be difficult to find sufficient room in the machine to include the materially larger spring drum required.v It is one of the main objects of my invention to overcome these diiculties, and provide effective carriage pulling means for an unusually long carriage by simple addition to features usually employed in the standard machine and Without reorganizing or changing` them or the functions performed thereby` as Will hereinafter more clearly appear.

In accordance with the Hart invention, hereinbefore referred to, the ordinary carriage and detachable carriage supporting rails are removed from the standard machine and replaced by a long carriage 27. For example in the machine from which the accompanying drawings were made the carriage is overL three feet in length. Correspondingly long carriage supporting rails 28 also replace the shorter ones of the ers 29 are interposed between the grooved guideways 1n the main carriage bar and the fixed supporting rails 2S. The carriage with the platen 30 mounted therein is thus supported and guided for traveling movements by the fixedguide rails. Sup-porting brackets 231i and 32 are detachably secured to and project outwardly from and beyond the sides of the main frame and constitute additional supports beyond the main frame for the carriage supporting rails 28. The pull band 5 from the usual drum Li is connected at 33 to the right-hand end of the carriage; the spring of the drum 4t exerting its force in the usual manner on the ':ai.1iage, but being insufficient in itself as a carriage propelling and ribbon feeding means.

In accordance with my present invention I provide an additional or auxiliary springY drum 84, which I prefer to rotatably support at 35 on the left-hand outstanding bracket 32. This drum is preferably supported in the same vertical transverse plane, or substantially the same plane, as the drum 4 and has a pull band 3G which pulls on the carriage in substantially the same line as the ordinary pull band 5. The band 36 extends from the drum 311- over the drinn le and pull band 5 and, in the present instance, to the same point of connection 33 where the last mentioned band is connected to' the carriage. The spring of each drum 4 and 84 exerts its own force independently of the other to pull the carriage in the direction of its feed; both springs act-ing together simultaneously and at the same point of connection with the carriage to move it. The force exerted by the spring of the auxiliary drumR which is preferably longer and stronger than that of the drum 1-, relieves the latter to a large extent of the force required by it to move the carriage and enables said spring drum i to exert the required force to operate the ribbon feed mechanism in the ordinary manner.

It Will be understood that by this construction I am enabled to use the standard spring drinn construction ordinarily employed Without modification or reorganization to effect a feed of the ribbon and also aid to` pull the carriage in the direction of its feed; that the use of the auxiliary spring drum 34, disconnected as it is from the ribbon feed mechaism, enables it to be in the nature of an attachment placed outside of the main frame of the machine Where space is available for its employment Without in any manner modifying or reorganizing the standard features of construction embodied in the main frame; that by a very simple and inexpensive construction I am enabled to overcome the difficulties hereinbefore pointed out in converting a standard mastandard machine. The usual bearing rollchine into one embodying an unusual long carriage, and that by my invention such conversion may be quickly made "at comparatively small expense and, so far as the carriage pulling means are concerned, by the mere addition. of the auxiliary drum 34.

I have shown my invention in the present instance embodied in a Monarch typewriting machine equipped with a long carriage supported and guided in accordance with the hereinbefore mentioned invention of Fred erick A. l-Iart. It should be understood however that the invention is not restricted to its embodiment in such machine, but may be employed wherever available in typewriting or like machines and may be variously applied and modified without de.

parting from my invention as defined in the accompanying claims'.

` What I claim as new and desire to secure by Letters Patent, is

I. In a typewriting or like machine, the combination of an extra wide carriage, a platen carried thereby, and carriage pulling means comprising two independent disconnected springs acting in unison on the carriage substantially along the same line to move it in the direction of its `feed and mounted in different positions on the machine and separately connected withv the carriage.

2. In a typewriting or like machine, the combination of a carriage; a platen carried thereby; carriage pulling means comprising two independent springs acting in unison on the carriage to move it in the direction of its feed and mounted in different positions on the machine; and ribbon feed mechanism controlled by one only of said springs.

3. In a typewriting or like machine, the combination of a carriage, a platen carried thereby, carriage pulling means comprising two independent spring drums having different axes of rotation and arranged substantially in the same vertical transverse plane and operating in unison on the carriage to move it in the direction of its feed, and pull bands that extend from said drums one over the other to the carriage.

Li. In` a typewriting or like machine, the combination of a carriage; a platen carried thereby; carriage pulling means comprising two independent spring drums having different axes of rotation and arranged substantially in the same vertical transverse plane and operating in unison on the carriage to move it in the direction of its feed, and pull bands that extend from said drums one over the other to the carriage; and ribbon feed mechanism controlled by one only of said drums.

5. In a typewriting or like machine, the combination of a main frame, a carriage, a platen carried thereby, a spring drum mounted within said main frame and connected to said carriage and exerting the force ofits spring to move the carriage in the direction of its feed, and an auxiliary spring drum mounted outside of said main frame and also connectedto said carriage and exerting the power of its spring to move the carriage in the direction of its feed.

6. In a typewriting or like machine, the combination of a main frame, a carriage, a platen carried thereby, a spring drum mounted `within said main frame and connected to said carriage and exerting the force of its spring to move the carriage in the direction of its feed, an auxiliary spring drum mounted outside of said main frame and also connected to said carriage and exerting the power of its spring to move the carriage in the direction of its feed, and ribbon feed mechanism controlled by said first mentioned spring drum.

7. vIn a typewriting or like machine, the combination of a main frame,a carriage, a platen carried thereby, a spring drum mounted within the main frame and connected to said carriage and exerting the force of its spring to move the carriage in the direction of its feed, a'bracket secured to saidmain frame and extending outwardly beyond a side thereof, and an auxiliary spring drum mounted on said bracket outside of said main frame and connected to the carriage and exerting the force of its spring to move the carriage in the direction of its feed.

8. In a typewritingr or like machine, the combination of a main frame, a carriage, a platen carried thereby, a spring drum mounted within ythe main frame and connected to said carriage and exerting the force of its spring to" move the carriage in the direction of its feed, a bracket secured to said main frame and extending outwardly beyond a side thereof, an auxiliary spring drum mounted on said bracket outside of said main frame and connected to the carriage and exerting the force of its spring to move the carriage in the direction of its feed, and ribbon feed mechanism controlled by said first mentioned spring drum.

9. In a typewriting or like machine, the combination of a main frame, a carriage, a platen carried thereby, a spring drum mounted within the main frame, a pull band extending from said drum to the carriage, a bracket secured to said main frame and ex` tending outwardly beyond a side thereof, an auxiliary spring drum mounted on said bracket outside of said main frame, and a second pull band connecting said auxiliary spring drum and said carriage, both bands extending from their drums in the same direction and simultaneously exerting a pull on the carriage to move it in the direction of its feed.

10. In a typewriting or like machine, the combination of a main frame, a carriage, a

platen carried thereby, a spring drum mounted Within the main frame, a pull band extending from said drum to the carriage, a bracket secured to said main frame and ex-A tending outwardly beyond a side thereof, an auxiliary spring drum mounted on said bracket outside of said main frame, a second pull band connecting said auxiliary spring drum and said carriage, both bands extending from their drums in the same direction and simultaneously exerting a pull on the carriage to move it in the direction of its feed, and ribbon feed mechanism controlled by said first mentioned drum.

11. In a typewriting or like machine, the combination of a main frame, a Carriage, a platen carried thereby, a spring drum mounted Within the main frame of the mac'hine, a pull band connecting said drum and carriage, carriage supporting brackets secured to the main frame and extending outwardly beyond the sides thereof, an auxiliary spring drum mounted on one of said brackets outside the main frame, a pull band connecting said auxiliary drum and the carriage and extending over said rst 1nentioned pull band, botlrbands exerting their pull on the carriage in the same direction and at the same time, and ribbon feed mechanism controlled by said first mentioned spring drum.

12. In a typewriting or like machine, the combination with a frame, ribbon mechanism, carriage and carriage-propelling spring drum, said spring drum driving said ribbon mechanism and said frame and spring drum being adapted for a carriage o ordinary Width, of a bracket added to said frame to support and guide a carriage of extra Width, and an auxiliary spring drum adapted for said extra wide carriage.

13. In a typewriting machine, `t'he combination With a Wide carriage, of two independent spring drums for pulling the same, said drums being arranged edgewise in substantially the same transverse vertical plane, and tvvo independent pull bands extending from said drums one over the other to the right-hand end portion of the carriage.

Signed at the borough of Manhattan, city of New York, in the county of New York, and State of New York, this 1st day of November, A. D. 1922.

ARTHUR F. rooLE.

Witnesses:

CHARLES C. SMITH, E. M. WELLS. 

